Cheapest one-way flights from Seattle to Beijing in September from $391

AirHint found the following cheapest one-way flights from Seattle (SEA) to Beijing (PEK) in September 2025 (see full year).

One-Way flights

25 Sep Hawaiian Airlines
26 Sep Hawaiian Airlines
23 Sep Hainan Airlines direct

Also check the deals for return flights from Seattle to Beijing in September.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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